> Skip to content
[]
  • Published: 9 June 2026
  • ISBN: 9781529932324
  • Imprint: Vintage
  • Format: Paperback
  • Pages: 336
  • RRP: $26.99
Categories:

Ferment

The Life-Changing Power of Microbes

  • Tim Spector



From the world-leading gut scientist and no. 1 bestselling author of Food for Life, an introduction to the life-changing benefits of fermentation

Tim Spector is on a mission to bring fermenting into our lives and kitchens. Drawing on cutting-edge science and his own experiments, with practical tips and recipes, Ferment is an accessible introduction and guide for beginners and fermenting enthusiasts alike.

Fermenting is one of the most ancient techniques for preparing and preserving foods and drinks, requiring no more than a little knowledge, time, patience and basic materials to turn the humblest of ingredients into the richest of nutritional sources.

Yet the wide-ranging benefits of fermenting - nutritional, ecological, financial and, yes, taste - are unspoken, and many people feel too intimidated to give fermenting a go.

With his well-known conviction, clarity and authority, Tim Spector is here to share that ferments are the surprisingly delicious discovery that have most transformed his diet. He explains their extraordinary potential to rapidly and cheaply improve our gut microbes and general health more than any other food group, and shows the endless simple and tasty ways to bring them into our daily lives.

Ferment cuts through myths and misunderstanding to help us navigate the fascinating world of ferments and their extraordinary benefits for our health, our meal times, and our planet.

  • Published: 9 June 2026
  • ISBN: 9781529932324
  • Imprint: Vintage
  • Format: Paperback
  • Pages: 336
  • RRP: $26.99
Categories:

Praise for Ferment

Tim Spector makes healthy eating exhilarating, empowering and achievable

Hugh Fearnley-Whittingstall, praise for FOOD FOR LIFE

Tim Spector has been exploding the myths around food and health for years

The Times, praise for FOOD FOR LIFE

The nutrition revolution is well underway and Tim Spector is one of the visionaries leading the way. His writing is illuminating and so incredibly timely

Yotam Ottolenghi, praise for SPOON-FED

I love this book just SO much. Fermentation is the original wellness hack - and Tim reminds us that the best health breakthroughs can begin in a jar.

Liz Earle

The master of gut health and intelligent eating, Tim Spector makes the science of fermentation, and the goodness it can bring you, exciting to read about, and the recipes are so tempting and accessible that you’ll want to have a go for sure

Hugh Fearnley-Whittingstall

A super healthy and tasty gift for you and your gut microbiome - discover the joy of fermenting with Tim's expert guidance

Dr Clare Bailey Mosley

No one knows more about fermenting than Tim Spector - his insights have been life-changing for me

Davina McCall

Tim Spector has done more than anyone to popularise the microbiome…Now with Ferment, Spector focuses on foods that can contribute their own cargo of friendly bacteria and yeasts

Financial Times

A persuasive, meticulously researched book… By the end of the book, I had jars of kombucha and sauerkraut brewing in my pantry

New Scientist

Ferment is a deep-dive on the super good for you foods… Spector finds ferments so thrilling because you eat your own science… on the research involved is gripping too

UK Press Syndication

A fascinating overview of the field based on copious new research. It is not just a summary of what has gone before but an exciting glimpse of the future… Spector is an engaging storyteller and his palpable enthusiasm for the microbial world is infectious

Literary Review

Tim Spector [has] done more than anyone to draw public attention to the link between gut health, immunity, ageing and mood

Daily Telegraph

Spector is an engaging storyteller and his palpable enthusiasm for the microbial world is infectious... There is a quotable fact on every page... A practical handbook and a thorough guide to this still-developing science - one that offers its knowledge as a gateway to further research and further thought.

Literary Review
penguin pop image
penguin pop image